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000607143 1001_ $$0P:(DE-H253)PIP1102860$$aLytvynenko, Y.$$b0
000607143 245__ $$aControl of the asymmetric band structure in Mn$_2$Au by a ferromagnetic driver layer
000607143 260__ $$aWoodbury, NY$$bAPS$$c2023
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000607143 520__ $$aHard x-ray angle-resolved photoemission spectroscopy reveals the momentum-resolved band structure in an epitaxial Mn$_2$Au(001) film capped by a 2-nm-thick ferromagnetic permalloy layer. By magnetizing the permalloy capping layer, the exceptionally strong exchange bias aligns the Néel vector in the Mn$_2$Au(001) film accordingly. Uncompensated interface Mn magnetic moments in Mn$_2$Au were identified as the origin of the exchange bias using x-ray magnetic circular dichroism in combination with photoelectron emission microscopy. Using time-of-flight momentum microscopy, we measure the asymmetry of the band structure, E(k)≠E(−k), in Mn$_2$Au resulting from the homogeneous orientation of the Néel vector. Comparison with theory shows that the Néel vector, determined by the magnetic moment of the top Mn layer, is antiparallel to the permalloy magnetization. The experimental results demonstrate that hard x-ray photoemission spectroscopy can measure the band structure of epitaxial layers beneath a metallic capping layer and corroborate the asymmetric band structure in Mn$_2$Au that was previously inferred only indirectly.  
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000607143 7001_ $$0P:(DE-H253)PIP1026955$$aFedchenko, O.$$b1
000607143 7001_ $$0P:(DE-H253)PIP1026959$$aChernov, S. V.$$b2
000607143 7001_ $$0P:(DE-H253)PIP1018818$$aBabenkov, S.$$b3
000607143 7001_ $$0P:(DE-H253)PIP1031997$$aVasilyev, Dmitry$$b4
000607143 7001_ $$0P:(DE-H253)PIP1100643$$aTkach, O.$$b5
000607143 7001_ $$0P:(DE-H253)PIP1007694$$aGloskovskii, A.$$b6
000607143 7001_ $$0P:(DE-H253)PIP1024768$$aPeixoto, T. R. F.$$b7
000607143 7001_ $$0P:(DE-H253)PIP1011024$$aSchlueter, C.$$b8
000607143 7001_ $$0P:(DE-H253)PIP1101814$$aGrigorev, V.$$b9
000607143 7001_ $$0P:(DE-H253)PIP1096199$$aFilianina, M.$$b10
000607143 7001_ $$aSobolev, S.$$b11
000607143 7001_ $$0P:(DE-H253)PIP1022169$$aKleibert, A.$$b12
000607143 7001_ $$0P:(DE-H253)PIP1013840$$aKläui, M.$$b13
000607143 7001_ $$0P:(DE-H253)PIP1031949$$aDemsar, J.$$b14
000607143 7001_ $$0P:(DE-H253)PIP1012054$$aSchoenhense, Gerd$$b15
000607143 7001_ $$0P:(DE-H253)PIP1020097$$aJourdan, M.$$b16
000607143 7001_ $$0P:(DE-H253)PIP1015647$$aElmers, Hans-Joachim$$b17$$eCorresponding author
000607143 773__ $$0PERI:(DE-600)2844160-6$$a10.1103/PhysRevB.108.104413$$gVol. 108, no. 10, p. 104413$$n10$$p104413$$tPhysical review / B$$v108$$x2469-9950$$y2023
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